Anti-frictional chock or leader



. M 1., V I m. Q

Patented Apr. 24, 1888.

L. DYER.

ANTI FRIOTIONAL 01100]: OR LEADER.

' (No Model.)

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. WITNESSES.

UNITED STATES PATENT OrrrcE,

LUCIUS DYER, OF MILLBRIDGE, MAINE.

ANTI -FRICTIONAL CHOCK OR LEADERa SPECIFICATION forming part of LettersPatent No. 381,831, dated April 24,1888.

Application filed January 30, 1888. Serial No. 262,381. (No model.)

bridge, in the county of Washington and State of Maine, have inventedcertain new and useful Improvements in Anti-Frictional Chocks orLeaders; and I do hereby declare that the following is a full, clear,and exact description of the invention, which will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, which form a part of thisspecification, and in which Figure 1 is a perspective view of one end ofa spar provided with my improved leader. Fig. 2 is a vertical transversesectional view of the same, and Fig. 3 is a detail view of frame andguide-pulleys. v

The same numerals of reference indicate corresponding parts in all thefigures.

My invention has relation to anti-friction leaders or checks for booms,gaffs, or other spars of a vessel, having a pivoted frame provided withguide-pulleys for the rope to be carried around the leader; and itconsists in the improved construction and combination of parts of such aleader, in which the sheave is journaled in a cleat or bracket upon theside of the spar, as hereinafter more fully described and claimed.

In the accompanying drawings, the numeral 1 indicates the spar, to oneside of which the cleat .2 is secured by means of nutted bolts 3 passingthrough the ends of the cleat and the spar, and the inner side of thiscleat is formed with a recess, 4, extending from the upper to the loweredge of the cleat, leaving the ends of the cleat in contact with thespar and a space between the cleat and the spur at the middle of thesame.

The cleat is formed with the usual slot, 5, in which the sheave 6isjournaled upon the pin 7, and the ends of this pin project through thesides of the cleat, and have the inner ends of the bent arms of theframe 8 for the guidepulleys 9 pivoted upon them, the said frame havingone arm upon the outer side of the cleat, and the other in the spaceformed by the recess of the cleat, the arms straddling the re cessedmiddle of the cleat. The rope 10, which is fastened to the sail 11,passes between the guide-pulleys and around the sheave in the cleat,from which it is carried to its further destination wherever thecharacter of the rope and its office requires it.

It will be seen that this leader will perform the same function as theleader or chock for which Letters Patent were issued to me on the 11thday of May, 1886, No. 341,838, and the leader or chock for which I havemade application for Letters Patent on the 5th day of August, 1887,Serial No. 246,195; but in both of these cases the spar was slotted forthe reception of the sheave and for the passage of the rope, while inthis leader the sheave is journaled in the cleat, which is secured tothe side of the spar, so that there will be no weakening of the spar byslotting it.

The frame for the guide-pulleys will swing freely upon the pin of thesheave, and the entire cleat and sheave and frame may be secured uponthe spar by simply passing the nutted bolts through the spar andsecuring them in the perforations in the ends of the cleat.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States In an anti-friction leader for therigging of vessels, the combination, with a cleat, the inner side ofwhich is provided with a recess extending from its outer to its inneredge, and having a slot, a sheave in the slot, a pin through the leaderand through the sheave, and a frame secured uponthe pin, with one of itsarms within the recess and the other arm upon the outside of the cleat,and'having guide-pulleys journaled in the other end of the frame.

In testimony that I claim the foregoing as my own I have hereuntoafiixed my signature in presence of two witnesses.

LUGIUS DYER,

Witnesses:

.F. E. WALLACE, J. B. SwANroN'.

